XFX HD7770 Black Edition S Crossfire & HD7750 DD Review

To test power consumption today we are using a Keithley Integra unit and we measure power consumption from the VGA card inputs, not the system wide drain. We measure results while gaming in Crysis Warhead and record the results.

In such an energy aware climate, AMD are making a big deal out of their new ‘ZeroCore Power’ technology. Many solutions today use power gating, clock gating and memory compression to reduce idle power requirements, but ZeroCore power technology can completely power down the core GPU while the rest of the system remains active.

Both cards are very energy efficient, especially the HD7750 which takes all the power it needs from the PCI E slot. 43 watts when gaming is very impressive.

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